12100843 has 2 divisors, whose sum is σ = 12100844. Its totient is φ = 12100842.

The previous prime is 12100817. The next prime is 12100849. The reversal of 12100843 is 34800121.

12100843 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It is an emirp because it is prime and its reverse (34800121) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 12100843 - 2⁵ = 12100811 is a prime.

It is a super-3 number, since 3×12100843³ (a number of 22 digits) contains 333 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12100843.

It is not a weakly prime, because it can be changed into another prime (12100849) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6050421 + 6050422.

It is an arithmetic number, because the mean of its divisors is an integer number (6050422).

Almost surely, 2^12100843 is an apocalyptic number.

12100843 is a deficient number, since it is larger than the sum of its proper divisors (1).

12100843 is an equidigital number, since it uses as much as digits as its factorization.

12100843 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 12100843 is about 3478.6265968051. The cubic root of 12100843 is about 229.5823738427.

Adding to 12100843 its reverse (34800121), we get a palindrome (46900964).

The spelling of 12100843 in words is "twelve million, one hundred thousand, eight hundred forty-three".